Pump pipe lift



Nov. 13 1923.

R. H. GIBSON PUMP PIPE LIFT Filed Dec, 13. 1920 ROBERT E. GIBSON, @Il CRl-EON, ALBERTA, CANADA..

To @ZZ Be it known that. son, of the village o ince of Alberta,

.PUT/IP IPI Application led December 1 iii/wm t may concer/n l, Bonnin*HENRY Giei Carbon, in the Prov- Canada, have invented certain new anduseful Improvements in Pump iipe Lirts, oi` which the tollowiing is thesperication.

diy invention relates to improvements in pump pipe lifts and the objectof the invent-ion is to devise pipe lift that will be tree to slide downthe pipe in a. well and which can be so actuated at point as to grip thefrom the well. struct a pump-lift t A further any particular pipe :indlitt the same object is to conhzit will be capable of beingreadily endquickly ett-ached to, and

detached My invent-ion con structed and more particularly descrii'iecvice constructed according 4from the pipe.

sists ot' a device conarrenged all as hereinafter l and illustrateddrawing` in which:

side elevation of u del'o my invention showing' the same appli-ed to thepipe.

Fig- 2 is an elevati right angles to Fig. Fig. 3 is e plan vi Likecharacters of responding l is th having n. eoncaved ii ber. 7 arevertical through at its lower end witl member having the eoncaved intevided with suitable trunnions member 9 intermedi the same and provid npair of lugs 5 and 6 on oit the Same taken at l, and

reference indicate corparts in the dilllerent views. e pipe, v2 is aconvexed member iterior provided with 5 and 6 are suitably lugsextendingletconvexed meinbolts, each extending and provid-ed 9 is alever ior 10 pro- 1. 12 are i a nut 8.

Serrat-ions 1 extendingF laterally from the ately ot the length ot edwith the pins 13 ei;-

tending' vertically theretliroirgh.V

14 are links pivote spective lugs 5 and 6 ends ce hook rrying the rings1 ed to extend over the trunnions 1Q.

suitably connected to hook adapted to engage lly connected to the rehj.the bolts 7, the free 5 which are adapt- 16 is a :i cable 17, said ringl18 on the lower end of the lever member 9.

The operation of t The device is top of the well bf the links 14 overthe being norm ally held applied to he device is as follows: the pipe etthe ookinrj the rings 15 ot trunnions 12. said rings thereon by the'pins 13,

PE LFT.

3, 1920. Serial No. 430,235.

thus the member 2 is held on one side of the pipe and the member 9 onthe other side. lf force is exerted on the 'treeend of the lever 9 itwill be seen that the mer bers 2 and 9 will be practically free on thepipe and will be permitted to slide down the sume under the torce ofgravity. Y

lWhen the device has reached the desired point it is merely necessary topull on the cable 17 which will` through the medium of the hook 16 andthe ring` 1S, pull up the free end of the lever member 9, thus drawing`the member 2 inwardly and causingthe serrations 1- to engage the pipe.Simultaneously the serrations 11 ot' the member 9 engages the other sideot the pipe and consequently us long es the cable 1T pulled upwardly thepipe 1 will be tightly held hetween such members und S) and cnn bepulled up trom the well.

From the above description it will be ap-- parent that l have devised isimple und et tective pump pipe litt :ind one that can be readily undquickly applied to the pipe.

`Further a device constructed :recording to my invention can be:minutectured very cheaply.

lVhat I claim as my invention is:

1. In a,v pump pipe litt, u, convened meniher having' n serratedcouczived interior for application to one side ot u pipe. a lever memberhaving' n serrated coucaved interior Ator application to the other sideol the pipe, links pivota-lly connected to the converted member,laterallyv extendinrr trunuions on the lever member. rings on the freeends ot the linke` adapted to extend over the truu iiions, pinsextending' through the ti'uimions for normally holding the rings thereonand means connected with the tre-e end of the lever member t'orpullingr'thc sume in u torvverd direction.

2. A device ot the character deecribed. comprising coectinnv grippingmembers. zi pair ot spaced superposed lugs projectingA outwardly tronieuch ot' opposite sides of one ot seid nicmliiers. pin extending`'uetween the lugs ot each pair and links counected between said pins andthe remaining .qi'iiLip-iiig member.

A device accordingl to claim wherein thc seid pins are detachsili-lvsecured to the lugs with which they ure associated.

l. A. device urcordinn' to claim 2. in which cech ot seid pins is in thetorni ot a bolt having a heed at one end for engaging one lng'nnd a nutthe opposite end l"or engaging the remaining lug.

5i A device of the Character described, eemprising coa-eaing grippingmembers, trunnions carried by one of seid members; links carried by theremaining member, rings secured to eeive the Jui'nnnions therethroughand ineens for retaining the trnnnions and rings in nssembled relation.

6. A device oi: the eharnoer deseriled7 comprising coaeting grippiin1members`r trunnions carried by one member and rings eerried by the othermember *for receiving the trunnions thereihrough. v

Y. A device of the @hara-eter described, eon'iprising eoeeing grippingmembers` pro said links adapted to ref' vided with opposing grippingsurfaces, one oi:` seid inenibers being formed with en integral leverexension extendingV outwardly und downwardly with respect to thegripping snrlziee jhereo'li, ineens pivotelly Connecting the leverextension to the other member and ln'iisting ineens eonneeted io thelower end or seid extension, in which J(he means for connecting themen'ibers together comprises rnnnions carried by the lere: extension ofene member, rings receiving Jche 'trunnions therethrough end n'ieensconnecting Athe rings to the remaining member.

ROBERT H. GIBSON.

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